change the headlight unit for a cibie unit with an H4 bulb fitting and with 12v electrics you can buy from paul goff an LED for the headlight and a suitable stop/tail led as well, total lighting load is less than 24 watts and a much better headlight as well, much brighter and the beam goes a lot further, great for country roads, you can easily ride with dipped beam in daylight without flattening the battery. done this to my A7ss and it works well. if you are worried about it discharging back through the dynamo simply fit a big diode which acts like a one way valve, very simple to do, i have one of paul goffs units on mine and not a problem.